WordPress is an open-source and popular content management system. However, installing and setting up WordPress on a new server is a very time-consuming process, especially if you need to do it again and again. In this case, you can use Docker and Docker compose to simplify your WordPress installation process using just a single command.
In this post, we will show you how to deploy WordPress with Docker and Docker Compose.
Prerequisites
- A fresh Ubuntu 20.04 server on the Atlantic.Net Cloud Platform
- A root password configured on your server
Step 1 – Create Atlantic.Net Cloud Server
First, log in to your Atlantic.Net Cloud Server. Create a new server, choosing Ubuntu 20.04 as the operating system with at least 4GB RAM. Connect to your Cloud Server via SSH and log in using the credentials highlighted at the top of the page.
Once you are logged in to your Ubuntu 20.04 server, run the following command to update your base system with the latest available packages.
apt-get update -y
Step 2 – Install Docker and Docker Compose
First, you will need to install some required dependencies on your server. You can install them with the following command:
apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common -y
After installing all of them, add the Docker repository with the following command:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Once the repository is added, install Docker and Docker Compose with the following command:
apt-get install docker-ce docker-compose -y
After installing both packages, you can proceed to the next step.
Step 3 – Create a Docker-Compose YML File
Next, you will need to create a docker-compose.yml file to deploy the WordPress.
First, create a new directory named wordpress with the following command:
mkdir wordpress
Next, change the directory to wordpress and create a new docker-compose.yml file:
cd wordpress nano docker-compose.yml
Add the following lines:
wordpress:
image: wordpress
links:
- mariadb:mysql
environment:
- WORDPRESS_DB_PASSWORD=secure-password
- WORDPRESS_DB_USER=root
ports:
- "your-server-ip:80:80"
volumes:
- ./html:/var/www/html
mariadb:
image: mariadb
environment:
- MYSQL_ROOT_PASSWORD=secure-password
- MYSQL_DATABASE=wordpress
volumes:
- ./database:/var/lib/mysql
Save and close the file when you are finished.
Note: Replaced your-server-ip with your public IP.
The above file will download WordPress and MariaDB images from the Docker registry, create a database and set a password, link both containers, and expose the container on port 80.
Step 4 – Deploy WordPress
Now, change the directory to wordpress and launch the WordPress and MariaDB container with the following command:
docker-compose up -d
You should get the following output:
Pulling mariadb (mariadb:)... latest: Pulling from library/mariadb 345e3491a907: Pull complete 57671312ef6f: Pull complete 5e9250ddb7d0: Pull complete 2d512e2ff778: Pull complete 57c1a7dc2af9: Pull complete b846f4f4774a: Pull complete 66409f940bd2: Pull complete 82d8723e99d8: Pull complete 55edbf0f673e: Pull complete c34793730ad6: Pull complete 8f1925a0d734: Pull complete 72904fb5fd0b: Pull complete Digest: sha256:0c3c560359a6da112134a52122aa9b78fec5f9dd292a01ee7954de450f25f0c1 Status: Downloaded newer image for mariadb:latest Pulling wordpress (wordpress:)... latest: Pulling from library/wordpress 69692152171a: Pull complete 2040822db325: Pull complete 9b4ca5ae9dfa: Pull complete ac1fe7c6d966: Pull complete 5b26fc9ce030: Pull complete 3492f4769444: Pull complete 1dec05775a74: Pull complete 77107a42338e: Pull complete f58e4093c52a: Pull complete d32715f578d3: Pull complete 7a73fb2558ce: Pull complete 667b573fcff7: Pull complete 75e2da936ffe: Pull complete 759622df3a7b: Pull complete c2f98ef02756: Pull complete 50e11300b0a6: Pull complete de37513870b9: Pull complete f25501789abc: Pull complete 0cf8e3442952: Pull complete d45ce270a7e6: Pull complete 534cdc5a6ea6: Pull complete Digest: sha256:e9da0d6c867249f364cd2292ea0dd01d7281e8dfbcc3e4b39b823f9a790b237b Status: Downloaded newer image for wordpress:latest Creating wordpress_mariadb_1 ... done Creating wordpress_wordpress_1 ... done
You can verify the downloaded images with the following command:
docker images
Output:
REPOSITORY TAG IMAGE ID CREATED SIZE wordpress latest c2dd1984ad5b 3 days ago 551MB mariadb latest eff629089685 13 days ago 408MB
You can also verify the running container with the following command:
docker-compose ps
Output:
Name Command State Ports --------------------------------------------------------------------------------------- wordpress_mariadb_1 docker-entrypoint.sh mysqld Up 3306/tcp wordpress_wordpress_1 docker-entrypoint.sh apach ... Up 45.58.43.20:80->80/tcp
Step 5 – Access WordPress Installation Wizard
At this point, WordPress has been deployed and listening on port 80. You can access it using the URL http://your-server-ip. You should see the following page:
You can now follow the steps to complete the WordPress installation.
If you want to update both WordPress and MariaDB images, run the following command:
docker-compose pull
Now, push changes to your containers using the commands below.
docker-compose up -d
If you want to stop and remove all containers, run the following command:
docker-compose down
Conclusion
In the above guide, you learned how to deploy a WordPress with Docker and Docker Compose. Try it out on dedicated hosting from Atlantic.Net.
